function joinAddress() {
	var province = $("select[name='sel0']").val();
	var city = $("select[name='sel1']").val();
	var county = $("select[name='sel2']").val();
	if ((province == undefined) || (province == null)) {
		province = "";
		alert("请选择省份");
		return false;
	}
	if ((city == undefined) || (city == null)) {
		city = "";
	}
	if ((county == undefined) || (county == null)) {
		county = "";
	}
	var addressLable = province + city + county;
	var detailAddress = $("#detailAddress").val();
	var address = addressLable + " " + detailAddress;
	if (detailAddress != "") {
		$("#address").val(address);
	} else {
		alert("请输入街道地址");
	}
}